Holons in Chiral Spin-Liquids: Statistics and Pairing

Details Holons in Chiral Spin-Liquids: Statistics and Pairing Holons in Chiral Spin-Liquids: Statistics and Pairing

1993-07-27

arxiv.org/abs/cond-mat/9307055v1

Physics

Condensed Matter

REVTeX 3.0 (13p); UUEncoded, compressed PostScript figures (11p)

Scientific paper

We study Gutzwiller-projected variational wavefunctions for charged, spinless holon excitations in chiral spin liquids. We find that these states describe anyons, with a statistical phase $\Phi_s$ that is continuously adjustable between $0$ and $\pi/2$, depending on a variational parameter. The statistical flux attached to each holon is localized to within a lattice constant. By diagonalizing the effective Hamiltonian for charge motion in our variational basis we obtain a two-holon pair state. This two-holon state has large overlap with a two-hole state whose relative wavefunction has $d$-wave symmetry and breaks time-reversal and parity.

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